The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 13, 1978
Filed:
Mar. 16, 1977
Applicant:
Inventors:
Henricus Matheus van Ass, Eindhoven, NL;
Robert Georg Gossink, Eindhoven, NL;
Assignee:
U.S. Philips Corporation, New York, NY (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C03C / ;
U.S. Cl.
CPC ...
106 50 ; 65 / ; 65DI / ; 106 52 ; 106 54 ; 106 / ; 106 / ; 350 9629 ;
Abstract
Glass composition pairs which are suitable for processing into fibers with a gradient refractive index profile for use in telecommunication. They consist of GeO.sub.2 B.sub.2 O.sub.3 /SiO.sub.2, alkali oxide which in one composition consists of Li.sub.2 O and/or Na.sub.2 O and in the other composition of Na.sub.2 O and/or K.sub.2 O and other compatible oxides.